Modeling and control of workstation level information flow in FMS using modified Petri nets

Document Type

Article

Publication Date

12-1-1999

Abstract

A flexible manufacturing system (FMS) has a traditional structure of three levels: cell, workstation, and equipment. The workstation level plays an important role in the overall performance of the FMS. This paper focuses on modeling and control of the FMS workstation level information flow. In order to have a unified workstation level system structure, front-end interfaces are introduced as a standard communication medium between the workstation level and the equipment level. A detailed information flow analysis is then carried out on the workstation level. For modeling purposes, a modified Petri net is proposed with its increased modeling capability over an ordinary Petri net. It associates data structures with places and programs with transitions. Finally, the modified Petri net is used to model and control the FMS workstation level information flow. The designed control system has been implemented in a real manufacturing factory with satisfactory performance.

Identifier

0033354580 (Scopus)

Publication Title

Journal of Intelligent Manufacturing

External Full Text Location

https://doi.org/10.1023/A:1008912805440

ISSN

09565515

First Page

557

Last Page

568

Issue

6

Volume

10

Grant

DMI-9410386

Fund Ref

National Science Foundation

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